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Ski Creek Erosion Control
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Ski Creek Erosion Control
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Entry Properties
Last modified
7/6/2011 1:12:54 PM
Creation date
6/11/2008 3:29:48 PM
Metadata
Fields
Template:
Watershed Protection
Document ID
sev_0004
Contract/PO #
PO 08-29
County
Teller
Community
Pike's Peak
Stream Name
Upper Ski Creek
Basin
Arkansas
Sub-Basin
Fountain 11020003
Water Division
2
Title
Upper Ski Creek Watershed Erosion Control and Restoration Project
Date
12/7/2007
Prepared For
CWCB
Prepared By
Rocky Mountain Field Institute
Watershed Pro - Doc Type
Project Report
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stormwater flow from the highway. The gullies were disconnected from the highway in <br />2006 when paving and erosion control efforts were completed in this section. The gullies <br />however are deeply eroded and the bai~lcs extremely unstable. The largest gully is 744' in <br />length and at its maximum is 5' deep and 15' wide. Deep undercuts are present <br />throughout this reach and multiple channels have formed in the lower section causing <br />severe erosion in this area. The second gully is 331' in length with only the upper third of <br />this gully extremely eroded. The goal of treatments in this area were to control expected <br />natural flows in the chamlel, stabilize and re-vegetate eroding bai~lcs, eliminate the braid <br />channels and restore the affected areas. <br />Treatments to achieve the project goals were specifically implemented to accomplish the <br />following objectives: <br />• Substantial reduction in the velocity of runoff and in the amount of sediment <br />transported, improving aquatic life habitat and reducing sedimentation impacts to <br />South Catamount Reservoir. <br />• Stabilization and restoration of the two tributary gully channels leading to a <br />prevention of further erosion and impact to the local forest. <br />• Establishment of native vegetation in bare areas on the periphery of the main <br />upper channel of Ski Creels and the two tributary gullies. <br />2.0 Project Implementation <br />On the ground project work began in earnest in June, 2007 with the collection of baseline <br />data to assess the project's effectiveness. Working in conjunction with Fin-Up Habitat <br />Consultants, Inc. and interns from Willamette University and Colorado College, fourteen <br />stream channel cross-sections were established as well as a longitudinal profile of the <br />main Ski Creek channel. Pebble counts were also completed in the lower and upper sub- <br />reaches, using the Bevenger and King Z-Walk pebble count methodology. Channel <br />cross-section and substrate data were used to calculate target width and depth for the <br />restored channels. Post project channel capacity for the upper segment was estimated to <br />be 65 cfs, and 85 cfs in the downstream segment. Boulder material was identified and <br />trees were selected for harvest for use in the project by Jeff Hovermale, project liaison <br /> <br />
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